[CFT] ipfw SMP-ready dynamic states

[Alexander V. Chernikov]

On 27.11.2012 09:54, Gleb Smirnoff wrote:
> On Tue, Nov 27, 2012 at 02:30:51AM +0400, Alexander V. Chernikov wrote:
> A> On 14.11.2012 19:47, Gleb Smirnoff wrote:
> A> > On Tue, Nov 13, 2012 at 11:28:23PM +0400, Alexander V. Chernikov wrote:
> A> > A>  So, we can do the following:
> A> > A>  1) lock increments/decrements via some separate mutex
> A> > A>  2) do nothing
> A> > A>  3) take some combined approach:
> A> >
> A> > 4) Take it via uma_zone_getcur(ipfw_dyn_rule_zone);
> A> It acquired zone lock to collect per-cpu item data, but
> A> uma_zone_set_max() did the trick.
> A> >
> A>
> A> Patch updated:
> A> * UMA zone is now allocated per-VNET instance
>
> Why? This only leads to more waste in allocator.
To be able to enforce state limit per-instance as it currently works.
>


-- 
WBR, Alexander